Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 06-17-2010, 04:42 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,667
Thanks: 9
Thanked 56 Times in 54 Posts
Rep Power: 525475
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: A/C only coming out of defrost vents

Just looking at the schematic i had send to you before, and indeed when there is no vacuum available the defrost mode is the only available. So most probably the fault is somewhere with the vacuum supply line between the engine and the mode switch.
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #14  
Old 06-18-2010, 09:50 PM
New Member
My Jeep: 1999 4.0L WJ
 
Join Date: Jun 2010
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Kruul is on a distinguished road
Re: A/C only coming out of defrost vents

I just fixed this on mine today. There was a very small rub spot in the small line just before it enters the firewall.

You can start where the vac line comes off the intake manifold and just trace it back. That line runs far beyond the spot where it T's off to the a/c. The fix cost around 4 dollars. Good Luck!
__________________

__________________
Reply With Quote
  #15  
Old 06-18-2010, 10:14 PM
SvenskaJeepGuy's Avatar
Let's Roll
My Jeep: 2005 4.7L WK
 
Join Date: Dec 2009
Location: Scranton PA
Posts: 13,083
Thanks: 139
Thanked 162 Times in 152 Posts
Rep Power: 1255315
SvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond repute
Garage
Re: A/C only coming out of defrost vents

Quote:
Originally Posted by Kruul View Post
There was a very small rub spot in the small line just before it enters the firewall.
i think there is where my wj was damaged too. it was a super cheap fix the first time, but once the doors broke it was expensive so i just left it broken
__________________
Reply With Quote
  #16  
Old 06-21-2010, 09:34 PM
Member
 
Join Date: Jun 2010
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1506
DLStryker is on a distinguished road
Re: A/C only coming out of defrost vents

Quote:
Originally Posted by Joe in PA View Post
Check all your vacuum lines for a leak and pay real close attention to those on the drivers side of the engine compartment.
You were spot on Joe!! Vacuum hose on the drivers side that connected to the intake maniflold was disconnected.

Thanks to everyone for their help!

DLStryker
__________________
Reply With Quote
  #17  
Old 06-22-2010, 11:43 AM
SvenskaJeepGuy's Avatar
Let's Roll
My Jeep: 2005 4.7L WK
 
Join Date: Dec 2009
Location: Scranton PA
Posts: 13,083
Thanks: 139
Thanked 162 Times in 152 Posts
Rep Power: 1255315
SvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond reputeSvenskaJeepGuy has a reputation beyond repute
Garage
Re: A/C only coming out of defrost vents

dont you just love a simple fix?
__________________
Reply With Quote
  #18  
Old 06-22-2010, 05:15 PM
Joe in PA's Avatar
Member
My Jeep: 2004 4.7L WJ
 
Join Date: Oct 2009
Location: Harrisburg PA
Posts: 900
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 2725
Joe in PA has disabled reputation
Re: A/C only coming out of defrost vents

Great to hear the leak was easy to spot and even easier to fix!
__________________
01' WJ Larado - 4.0L i6
04' WJ Freedom Edition - 4.7L HO
07' WK Limited - 5.7L Hemi
09' Mustang GT - Good For the Soul

[SIGPIC][/SIGPIC]
Reply With Quote
  #19  
Old 06-24-2010, 12:23 AM
Member
 
Join Date: Jun 2010
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1506
DLStryker is on a distinguished road
Re: A/C only coming out of defrost vents

Quote:
Originally Posted by SvenskaJeepGuy View Post
dont you just love a simple fix?
YES!!!! Luck was on my side this time. Easy to fix and no cost! I had stopped at a repair shop and they said the repair would be between $300 to $1,600.
__________________
Reply With Quote
  #20  
Old 07-21-2010, 03:26 AM
SolarWar's Avatar
Member
My Jeep: 2006 3.7L WK
 
Join Date: May 2010
Location: NYC
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1599
SolarWar is on a distinguished road
Re: A/C only coming out of defrost vents

would this work for a wk as well? ive got an 06 GC laredo, and the air come out of the defrost and the floor vents all the time. if i switch it to the dash vents, they will work, but then its all three locations that blow. if i switch to the defrost or floor vents the only thing that changes is the dash vents close.

Chris
__________________

__________________
The NYC Blizzard of 2011
Brooklyn Jeep
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Smell from vents when AC is off. White WK Swagga Grand Cherokee - WK 60 07-15-2010 10:38 AM
LED Fender Vents i0r15 Visual Modifications 17 01-19-2010 12:18 PM
WK fender vents rvtifer Visual Modifications 9 12-01-2009 08:53 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:28 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community